Spectacle-frame.



J. C. FERGUSON, JR.

SPECTACLE FRAME.

APPLICATION FILED DEC.12. l91 4.

flail.

Iwwwtor Josqvh (iirgwsbit JOSEPH C. FERGUSON, JR., 013 PHILADELPHIA, PENNSYLVANIA.

SPECTACLE-FRAME.

' To all whom it may concern:

Be it known that I, Josnrn G. FERGUSON, J r., of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements inSpectacle-Frames, whereof the following is a specification, reference being had to the accompanying drawings.

In said drawings, Figure I, represents a.

view in perspective of a pair of'spectacles embodying my invention. Fig. II, is :1 partial top or plan view showing the end of the hinged joint between the lens carrying. por

tion ofthe frame, and one of the rearwardly projecting ear-pieces. Fig. III, is a partial View in plerspective showing the extremity of the ear-piece at the hinged end thereof,

and Fig. IV, is a sectional view on the line 1v, IV, of Fig. 11.;

My invention relates to spectacles whose frames are constructed of non-metallic ma 'terial, such as tortoise shell, celluloid, or the pand or be capable of stretching, and then springing the lenses into position. This frequently results in cracking or injuring the lens and frames. ()n the other liaiul,'if thelens frame be split at the ends, as is customary in ordinary spectacle franies, ditl'ieulty is experienced in applying the earpieces, owing to thefact that the split ends do not lend. themselves to the usual method of at tachment in such cases, and the fragile na-- ture bf the non-metallicear-piece renders it exceedingly liable to break at the joint.

By my improvements I obviate these ob-, m enabled to construct a.

jections, and frame of non-metallic material, whichwill retain all the characteristic lightness sought for in this type offrame; which will permit the insertion of the lenses without difficulty 3" and which will afford a strong and secure joint for the ear-pieces.

Referring to the drawings,1-, indicates the lens-carrying frame and 2, 2, theear pieces.

The frame is divided at each "end, as shown at 3, andad acent to ."h CllVlSlOIl a pair of pro ecting lugs 4', and 5, extend in the general plane of the frame, with a sub-j Spccification of Letters latent. P t t d July 27, 1 15, Application filed December 12, 1914. Serial No. 876,761. V I

stantial interval between ,them, forming a socket which is adapted to receive the hinged end or the ear-piece. At a point close to the 'rounded portion of the frame a securing screw 6, is provided, by which the meeting edges at the opening 8, are clamped together in such manner as to securely hold the lens. .Near the outer extremity of the lugs 4, and

.5, a pin 7, extends across the opening, and

forms a pivotal hinge for the ear-piece 2.

The pivoted end of the ear-piece 2, has

preferably the configuration clearly shown in the perspective view of Fig. III, that is to say, it comprises an external rounded endportion 10, which is laterally extended as shown at 11, so as to overlap the opening between the lugs 4, and 5, the internal surface of" the-overlapping portion being flat so as to afford an abrupt shoulder 12, which abuts against the front face of the frame when the ear-piece is swung outward to the open position which it occupies when the spe 'a'acles are worn.

On the inner side of the end of the earpiece, an enlargement 13, is formed, in order to alford sufiicient strength at the bearing through which the pivot 7, pas'ses. v

The entire extremity of the ear-piece is slit longitudinally to permit the insertion of a thin metallic strip 15, which preferably is coextensive in cross section with the entire end portion of the ear-piece, a relatively thin layer of the non-metallic material thus covering each face of the metallic strip 15. Riv: ets 16 and 17, are located at appropriate points to firmly clamp the parts together.

lVith the device thus constructed, the lens 14:, is readily inserted in position by springing the meeting edges of the frame apart, at the opening 3, after which the parts are clamped together by means of the screw 6,

. and the lens is held firmly in position. The

ear=piece 2, is then pivot-ally secured by means of the pin 7, which has a head at one end, and is preferably split at the other, so

.that the projecting tips may be upset,as in ,dicated at 18, in Fig. IV.

Having thus described my invention, I j

wish it to be understood that I do not" claim" broadly the use of projecting lugs at the split endsof a lens-frame, nor the employment of a therewith. I claim: In combination pivoted ear-piece with a lens-frame formed of non-metallic material, said fram'e being in connection g 21,1e7m2 divided at each end and having, adjacent to adapted to bear against the front surface at the meeting edges at the respective ends, a theiensframe, when the ear-piece is in its pair if lugs, with an interspace between their open position, substantially as set forth.

I proximate faces; of an earpiece of n0n- Intestimony thereof, I have hereunto metallic material pivotaiiy secured said signed my name at Philadelphia," Pennsy1-. g5

lugs, the end of fiitidifiabpifififi being split at Vania this tenth day 0'? December, 1914. t-heregion adjacent to the pivot; mini :1 me- JOSEPH. (l FERGUSON, JR. tallie plate seated in said split extremity, Viitnesses: said plate being extended beyond the pivotti JAMEs H. BELL,

30 point and forming an abrupt shimmer .21). L. FULLERTQN. 

